Introduction to Simple Machines - JSS1 Basic technology Lesson Note

Simple machines are elegant devices that allow us to multiply force, change its direction, or modify its intensity. We'll dissect three primary types:

1. Levers: Levers are versatile tools consisting of a rigid bar pivoted on a fulcrum. We'll explore the three classes of levers and how they offer mechanical advantage in lifting, prying, and holding objects.u
2. Pulleys: Pulleys are wheel-and-axle systems with a grooved rim and a rope or belt running along its groove. We'll delve into fixed, movable, and compound pulleys, examining their role in lifting heavy loads, changing the direction of force, and distributing weight evenly.
3. Gears: Gears are toothed wheels that mesh with one another to transmit motion and power. We'll unravel the intricacies of gear trains, gear ratios, and gear types, uncovering their applications in machinery, vehicles, and even clocks.